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Ancient Valley
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Caption:
MGS MOC Release No. MOC2-491, 22 September 2003
Auqakuh Vallis is an ancient valley system that might have once been a conduit for liquid water flowing north, across northeastern Arabia Terra, toward the Nilosyrtis region. This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows a portion of the Auqakuh Vallis system. The valley was cut into layered bedrock. It was once much deeper than today, but much of the surrounding materials have been eroded away. Windblown sediments now cover the floor of the valley, a reflection of the parched conditions of the modern martian environment. This picture is located near 29.1°N, 299.6°W, and covers an area 3 km (1.9 mi) across. Sunlight illuminates the scene from the lower left.
Cataloging Keywords:
| Name | Value | Additional Values |
|---|---|---|
| Target | Mars | |
| System | ||
| Target Type | Planet | |
| Mission | Mars Global Surveyor (MGS) | |
| Instrument Host | Mars Global Surveyor | |
| Host Type | Orbiter | |
| Instrument | Mars Orbiter Camera (MOC) | |
| Detector | ||
| Extra Keywords | Grayscale, Water | |
| Acquisition Date | ||
| Release Date | 2003-09-22 | |
| Date in Caption | 2003-09-22 | |
| Image Credit | NASA/JPL/MSSS | |
| Source | photojournal.jpl.nasa.gov/catalog/PIA04757 | |
| Identifier | PIA04757 | |
